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Re: Apple IIe (European/PAL) recovery
> ... consistently get a typical memory pattern display on power-up, so at
>
> this point I'm still suspecting lack of reset-ability. (The keyboard
>
> reset key does not in fact reset it.)
It's been over 25 years, but I had a similar problem with my 6502 micro-controller project I designed in college. I discovered that the Reset pin must be treated rather carefully, or the 6502 "wakes-up" in a brain-damaged state. My fix involved making sure that the Reset pin was held low for a sufficient duration after power-up ... if I remember correctly, it involved a simple Resistor-Capacitor set-up, but the details have escaped my memory ... I was partying rather heavily that year, and I woke up in a brain-damaged state myself many times as well!
Mike